In year 9 when I was in my Geography class me and my friends were arguing and the teacher came over and said "you girls are always b*tching behind each others back like crazy animals!" so then out of nowhere I just came out said "f*ck off sir" and the I though omg im gonna get in trouble and why did I say that but then sir said "I'll show how to f*ck off!" it was kinda surprising and funny when he said cos teacher's arent supposed to swear but whatever he was cool with it!:p